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(No Model.) 6SheetsSheet 1.

O. E. MOORE.

MACHINE FOR POINTING AND FINISHING HORSESHOE NAILS.

No. 470,321. Patented Mar. 8, 1892.

(N0 Model.) 6 Sheets-Sheet 2,

G. E. MOORE.

MACHINE FOR POINTING AND FINISHING HORSESHOE NAILS.

No. 470,321. Patented Mar. 8, 1892.

(No Model.) 6 Sheets-Sheet 3 O. E. MOORE.

MACHINE FOR POINTING AND FINISHING HORSESHOE NAILS.

No. 470,321. Patented Mar. 8, 1892.

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6 Sheets-Sheet 5.

(No Model.)

. 0. E. MOORE. MAGHINBFOR POINTING AND FINISHING HO-RSESHOE NAILS. No.470,321.

Patented Mar. 8, 1892.

(No Model.) v s Sheets-Sheet 6.

0. E.- MOORE. MACHINE FOR POINTIN'G AND FINISHING HORSESHOB NAILS. No.470,321. Patented Mar. 8, 1892.

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' accordance with my invention.

UNITED STATES PATENT OFFICE.

CHARLES E. MOORE, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO ANN M. PUTNAM,OF SAME PLACE, AND GEORGE N. FLETCHER, OF DETROIT,

MICHIGAN.

MACHINE FOR POINTING AND FINISHING HORSESHOE-NAILS.

SPECIFICATION forming part of Letters Fatent No. 470,321, dated March 8,1892.

Application filed May 2'7, 1891- Serial No. 394,298. (No model.)

To all whom it may concern:

Be it known that 1, CHARLES E. MOORE, a citizen of the United States,residing at Boston, in the county of Suffolk and State of Massachusetts,have invented certain Improvements in Machines for Pointing andFinishing Horseshoe-Nails, of which the following is a full, clear, andeXact description, reference being had to the accompanying drawings,making part of this specification, in Which- Figure 1 is a plan of amachine for pointing and finishing horseshoe-nails, constructed in Fig.2 is a rear elevation of the same. Fig. 3 is an enlarged sectional sideelevation of the same. Fig. 4 is a vertical section on the line 4. l ofFig. 1. Fig. 5 is a side elevation. a detail in perspective of thenail-conductor and its slide. Fig. 7 is an enlarged plan of thestraightening-dies and their sliding carryingblocks. Fig. 8 is aperspective view of the front upper die-carrying block and die, showingthe movable guide-pieces on each side of the die. Fig. 9 is aperspective view of the bed-plate of the machine. Fig. 10 is a detail tobe referred to. Fig. 11 is a sectional detail to be referred to. Fig. 12is an enlarged plan of the pointing-dies and their slidingcarrying-blocks. Fig. 13 is a vertical section on the line 13 13 of Fig.12. Fig. 14 is an enlarged perspective view of the lower nail-stop.

My invention has for its object to improve the construction of machinesfor pointing and finishing horseshoe-nails, whereby the work can beperformed more rapidly and perfectly than heretofore; and to this endmyinvent-ion consists in a machine embodying certain novel combinationsof parts and details of construction, as hereinafter set forth andspecifically claimed.

In the said drawings, A represents the bed of the machine supported on asuitable framework B, having bearings in which runs the main or camshaft C, carrying a large gear D, with which meshes a' pinion E on thedrivingshaft G, provided at one end outside the frame-work with a heavybalance-wheel or pulley II, adapted to be driven by a belt. (Not shown.)

Fig. 6 is The bed A, which approximates in form to a cross, is providedwith deep recesses or Ways a b c, the ways I) 0 being arranged at rightangles to the way a and extending out through the sides of the bed, asseen in Figs. 1 and 9. Opposite to the front end of the recess or way ais formed a deep recess d for the reception of the blocks 6 e, in whichare fitted two removable steel plates f f forming upper and lowerstationary dies for supporting the back of the nail while beingstraightened and pointed, as hereinafter described. WVithin the way aare placed, one over the other, two horizontally-sliding blocks I K, theformer I carrying the upper frontdie g, which straightens the nail onthe front side, while the latter K carries the lower die h, which pointsthe front side of the nail with the usual bevel. The die 9 fits within anarrow recess in the block I, as seen in Figs. 1 and 8, and is securelyheld in place therein by a plate 15 and screw-bolts 16. die It issecured within a narrow recess in the block K bya screw 60, as seeninFig. 12. The lower slide K also carries immediately above the die h anarrow yielding clamp which fits within a recess in said slide and isnormally projected beyond the die It by a spring is, placed in a recessbehind it, said clamp, which is held in place within its recess in theblock K by a pin 20, passing through a slot 21, serving to hold the nailfirmly in position while being pointed. The sliding blocks IK are movedtoward the stationary dies f f against the stress of their respectivesprings Im by a heavy curved lever L, pivoted at '12. between ears orlugs rising from the bed A. and carrying at its end an anti-frictionroll 19, which is acted upon by a cam M on the cam-shaft C. The lever Lis provided near its upper end with two adjustablev bolts q q, the headsof which bear against the heads of bolts or pins 7" r, projecting fromthe slides I K, whereby as the lower end of the lever is raised by thecam M the slides are forced inward to cause the dies g h and clamp t'secured thereto to operate as desired. As the raised portion of the camM passes off the roll at the lower end of the leverL the latter Thelower drops by gravitation, thus retracting the bolts (1 q, when thesprings Z m will return the slides I K to their normal positions. Thebolts q q of the lever L can be adjusted to take up any wear of thedies, or to adapt them for nails of different sizes or thicknesses, orto cause said dies to act with more or less pressure upon thenailsbeingstraightened and pointed, and the bolts 1' 0' when worn can beeasily removed and replaced by new ones. The spring m, which retractsthe lower slide K, fits within a recess in its under side, as seendotted in Fig. 3, one end bearing against the slide and the other endbeing attached to a pin projecting up from the bed A, and the spring l,which retracts the upper slide, is secured at one end toa stationary pin73, and at the other end to a pin 30, projecting from the top of saidslide. Across the rear end of the way Cb is secured by screws 31 a plate32, through which passes an adjust ing-screw 33, adapted to bear againstthe ends of both of the blocks or slides I K, as seen dotted in Fig. 3,forming a stop, whereby the distance which said slides are movedbackward by their springs Z on may be regulated, as desired, to leave aproper-sized opening between the movable and stationary dies for nailsof dilferent sizes.

Within each of the lateral ways I) c are fitted to slide horizon tallytherein two blocks N P, similar to the blocks I K, and adapted to bemoved inward toward each other by two levers R S, pivoted at their upperends to cars or lugs on the bed A, and carrying at their lower endsanti-friction rolls 22, which are acted upon by cam-wheels T U, securedto the opposite ends of the cam-shaft G outside the frame-work. Theselevers, like the lever L, are provided with adjustable bolts 8 s, theheads of which bear against bolts 12, projecting from the outer ends ofthe slides N P, which are thus moved forward against the stress ofsuitable springs 25 u, by which the slides are carried back as theirlevers are moved outward by springs to '10, which serve to keep therolls 22 in contact with the cams. The bolts 85 are made adjustable inthe same manner as the bolts q q of the lever L and for a similarpurpose. Across the outer end of the ways I) c is secured a plate 35,through which passes an adjusting-screw 36, which bears against theouter ends of the two slides N P in said way, as seen in Fig. 4, wherebytheir outward range of movement may be regulated, as desired, to leave aspace of proper width between the side dies for nails of differentsizes. The springs t t, which retractthe upper slides N N, are each seeured at one end to a stationary pin and at the other end to a pin 71,projecting up from the slide N, and the springs to u. of the lowerslides P P are each secured within a recess in the slide, one end of thespring bearing against the slide, and the other end being attached to apin 72, projecting up from the bed A, as seen in Fig. 4. The two uppersliding blocks N N carry the side-straightening dies a a, which serve tostraighten the sides of the nail before it drops down into position tobe acted upon by the lower or pointing dies. These dies a a areimmovahly secured in narrow recesses in the blocks N N by suitablefastening devices 23, and are beveled at their ends to permit thefront-straightening die g to come into contact with the nail, and oneach side of the front-straightening die 1 and in contact therewith isarranged a vertical guide-piece 1'), supported on a rod 0, as seen inFigs. 7 and 8, said rod sliding in a horizontal recess or aperture inthe block I, and hearing at its inner end against a spring (1, (seendotted in Fi 7,) contained in said recess, by which construction theguide-pieces b I) are permitted to yield on coming into contact with thestationary die f. The guidepieces I) Z) serve to close the opeilingsbetween the side-straightening dies at a and the front-straightening dieg when said dies are drawn back, thus preventing the nail, as it drops,from being caught between these dies, and in this manner a straightunobstructed channel is formed, through which the nail can pass to thelower orpointing dies, leaving no projection or corner for the nail toaccidentally catch on as it drops. The two lower sliding blocks P Pcarry the side-pointing dies 7t h, which are secured within recesses inthe ends of the blocks by clampingplates 61 and screws 62, as seen inFigs. 12 and 13, and cooperate with the front pointing-die It, the facesof these dies being inclined or beveled to give the proper shape to thepoint of the nail. Theblocks N Nare cut awayand properly shaped at theirends, as shown in Fig. 7, to leave a space or passage between them ofsufficient width to permit the block I, beveled on each side, as shown,to be moved forward sufficiently to enable its die to act upon the nail,the lower sliding blocks P P K being similarly shaped at their ends, asseen in Fig. 12, for the same purpose, and by this construction thedie-carrying blocks are prevented from interfering with each other asthey are advanced to cause their dies to be brought into contact withthe nails. The die-carrying slides or blocks are all held down in placeWithin their ways by an angleplate X, extending over the front ends ofthe upper slides I N N and secured to the bed A by screws 75, the rearends of said slides being held down by smaller plates y, extendingacross the rear ends of the upper slides I N N, as seen in Fig. 1, andsecured to the bed A by screws 76.

'W is a conductor adapted to receive the' nails to be straightened andpointed, said nails being dropped into the conductor one at a time withthe head uppermost, and with the straight side or back toward the frontof the machine, as seen in Fig. 3, the point of the nail resting in a V-shaped groove '5', formed in a block la, secured to the block e. Theconductor V is attached to a plate Z, sliding in a dovetail groove orway formed in the upper side of the block it, as seen in Figs. 1 and 6,and when moved forward to bring it over an aperture m in the block Inthe nail drops down therethrough into the space or channel between thedies f g and guide-pieces b b until arrested by its point striking asliding stop it fittingwithin a groove 50 in the under side of the block6, (shown in Fig. 11,) the outer end of said stop being pivoted to theupper end of a lever 19, fulcrumed at 2t, and having pivoted to itslower end a rod A, bifurcated at its lower end to embrace the camshaftO,by which it is supported, and carrying an anti-friction roll g, which isacted upon by a cam 13 on said shaft 0 to move the rod A against theresistance of a retractingspring 38, by which the roll q is keptconstantly in contact with the cam, said cam being properly shaped toimpart the necessary movement to the lever 19, to advance the stop a atthe required time, the spring 38 serving to withdraw the stop whenpermitted to do so by the cam B. The plate Z with the conductor Visadvanced to bring the nail over the aperture m by the contact of theupper end of the lever 13 with a bar 1", secured to the plate Z, whichis thus moved the required distance against the stress of springs s 8',Figs. 1 and 6, by which the parts are returned to their normal positionswhen the upper end of the lever 19' recedes, and as the end of the awayon one side to form an opening of sufficient size to allow of thepassage of the nail, whereby a continuous straight channel without breakor interruption is formed for the passage of the nail from the top ofthe con ductor (when over the aperture m) tothe bottom of the lower orpointing dies, preventing the nail from dropping loosely, and insuringits descent in a vertical direction. The top of the guide-piece t is cutaway at u to allow of the passage of the sliding stop or catch n, whichis thus enabled to pass under the upper dies and hold the nail until itis caught and squeezed between the dies g f. On the withdrawal of thestop at, the nail, after having been operated upon by the front and sidestraightening dies, drops down into a position to be operated upon bythe lower or pointing dies, where it is caught and held by a lower stopor catch w, said catch consisting of a bell-crank lever pivoted at 25 ina recess formed within the block 6 and having its shorter arm connectedwith a rod G, bifurcated at its lower end to embrace the camshaft 0, bywhich it is supported, and carrying an anti-friction roll a which isacted upon by acam d on said shaft 0 to move the rod 0 against thestress of a spring 40, by which the roll a is kept constantly in contactwith the cam, said cam being properly shaped to cause the stop orcatch wto be withdrawn at the proper time, the spring 40 serving to advance thestop when permitted to do so. by the cam d. The end of the lever 20,which forms the stop to prevent the point of the nail from extendingbelow the die is provided with a V-shaped groove, as seen in Figs. 4,11, and 14, to center the point of the nail and insure its being held inthe proper position while being pointed, and this stop to is withdrawnbefore the die It is brought into contact with the nail, so as to be outof the way of said die, the stop being no longer required to support thenail after it has been gripped by the clamp i, which holds it firmly inplace while being pointed. The stop n is withdrawn soon after the dieshave receded sufficiently to allow the nail to drop onto the lower stopor catch to, which is brought up, as seen in Fig. 11, just previous tothe withdrawal of the stop a to hold the nail while being pointed, afterwhich the stop a is immediately advanced by the return movement of thelever p, which simultaneously moves forward the conductor W over theaperture m when another nail drops onto the stop a,

.two nails being now in the machine, as seen in Figs. 3 and 4, which areoperated upon simultaneously, the upper one being straightened at thesame time that the lower one is being pointed, the machine being thusenabled to perform its work with increased rapidity and in a perfect andreliable manner. The sliding blocks K P P of the lower or pointing diesbeing farther removed from the fulcra of the levers L R S than thesliding blocks I N N of the upper or straightening dies, it will beobvious that the pointing-dies will recede faster or a little in advanceof the straightening dies, and consequently the lower nail will bereleased in time to drop out of the machine and permit the lower stop wto be brought up to its place before the upper nail is released andallowed to drop by the withdrawal of the stop n.

lhe operation of the machine is as follows: A na il having been dropped.into the conductor \V with its point resting in the V- shaped groove tof the block 7s, said block is moved forward by the contact of the lever1' with the bar 4' until the conductor is directly over the aperture m,when the nail will drop down between the straighteningdies until itspoint comes into contact with the stop a, which has been advanced by theinward movement of the lever 19. The frontstraightening die g thenadvances and forcibly compresses or squeezes the nail against the frontstationary die f, and while still held between said dies theside-straightening dies are advanced, gripping the nail between them andstraightening it perfectly, as required. On the withdrawal of the stopit, after the straightening-dies have completed their work and receded,the nail drops down onto the lower stop to, which is brought up at thattime to catch the nail, immediately after which the stop n is returnedto its original position, and a mom ent thereafter the conductor Warrives over the aperture m and another nail drops onto the stop a andis ready to be straightened, as previously described. There are now twonails in the machine, as seen in Figs. 3 and 4, and as the slides I Kare simultaneously advanced by the lever L, the clamp i holds the lowernail firmly against the lower front stationary die f, the spring 7cpermitting the clamp i to yield as the slide K advances with the lowerpointing-die h, which is now brought forcibly in contact with the nailto form the bevel on the front side of the point. The slide K, with thedie h, then reeedesa short distance, but not sufliciently to relieve thenail of the pressure of the spring holding-clam p 2', which is pressedforward by its spring as the block K recedes. The sidepointing dies nowadvance and act on the nail to form the sides of the point, after whichthey recede to their orignal positions, and immediately thereafter thefront die his again advanced to act a second time upon the nail, whichcompletes the operation and gives it a sharp and perfectly-formed point.The second advance of the die h is produced by making the cam M of theproper shape to eiIe-ct this movement. The die It is then entirely drawnback, as is also the clamp z, and the stop w havingbeen withdrawn,aspreviously described, before the first operation of the die h, thefinished nail drops through a conducting-tube 51 onto the floor or intoa receptacle placed to receive it. The stop to is then instantly thrownup to catch the upper nail, which is now released by the withdrawal ofthe stop 71, and on the return of the latter and the advance of theconductor W another nail drops from the aperture m onto the stop a andthe operation continues, as before described, two nails being always inthe machine at the same time, the upper one being straightened while thelower one (previously straightened) is at the same time being pointed.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. In a machine for pointing and finishing horseshoe-nails, the slidingblocks I K, arranged one beneath the other and provided the former withthe straightening-die g and the latter with the yielding clamp 1i andpointing-die h, arranged immediately beneath the said clamp, and thelever L and springs I m for actuating said sliding blocks, said leveroperated by a cam, as described, combined with the laterally-slidingblocks N N P I, provided with the side-straightening dies a a andside-pointing dies h h and the lovers R S and springs t it for operatingthe said sliding blocks, said levers RS being actuated by cams andsprings, as described, the stationary dies ff, the upper and lower stopsn 10', adapted to intercept the nails, respectively, at the properlevels to be acted upon by the said straightening and pointing dies, andthe conductor W, all operating substantially in the manner and for thepurpose described.

2. In a machine for pointing and finishing horseshoe-nails, thecombination, with the straightening-dies and the pointing-dies arrangedbeneath the straightening-dies in line therewith, said dies beingadapted to operate simultaneously on two difierent nails, of theguide-piece it, placed in the space between the bottoms of thestraightening-dies and the tops of the pointing-dies and adapted toguide the nail and insure its descent in a vertical direction,substantially as set forth.

3. In a machine for pointing and finishing horseshoe-nails, thecombination, with the sliding block I and the straightening-die g,secured thereto and projecting beyond the front end thereof, of theguide-pieces b b, mounted on backwardlyyielding supports and arrangedto'slide on opposite sides of the die g and projecting normally beyondits working face, said guide'pieces being adapted to be brought intocontact with the stationary die f and be pressed backward thereby as thedie 9 advances, substantially as set forth.

4. In a machine for pointing and finishing horseshoe-nails, thecombination, with the block 70, having the V-shaped groove L" andaperture 177., of the sliding plate I, provided with the conductor V andbar 1', and means for actuating said slide and conductor, consisting,essentially, of the lever 1), connecting-rod A, actuated by a cam andspring, and the springs s for retracting the slide on the withdrawal ofthe lever 29, all operatin'gsubstantially as set forth.

5. In a machine for pointing and finishing horseshoe-nails, thecombination, with the straightening and pointing dies, as described, andthe upper stop a, of the lower stop 10, consisting of a bell-crank leverprovided with a V-shaped centering-groove at its outer end for holdingthe nail in position to be gripped by the clamp t', and the rod 0 andits actuating cam and spring, all operating substantially as described.

\Vitness my hand this 23d day of May, A. D. 1891.

CHARLES E. MOORE.

In presence of- P. E. TESCHEMACHEB, HARRY W. AIKEN.

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